213819538133 has 8 divisors (see below), whose sum is σ = 214009672800. Its totient is φ = 213629475888.

The previous prime is 213819538129. The next prime is 213819538183. The reversal of 213819538133 is 331835918312.

213819538133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213819538133 - 2² = 213819538129 is a prime.

It is a super-2 number, since 2×213819538133² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213819538183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7079378 + ... + 7109516.

It is an arithmetic number, because the mean of its divisors is an integer number (26751209100).

Almost surely, 2^213819538133 is an apocalyptic number.

It is an amenable number.

213819538133 is a deficient number, since it is larger than the sum of its proper divisors (190134667).

213819538133 is a wasteful number, since it uses less digits than its factorization.

213819538133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36211.

The product of its digits is 466560, while the sum is 47.

The spelling of 213819538133 in words is "two hundred thirteen billion, eight hundred nineteen million, five hundred thirty-eight thousand, one hundred thirty-three".